Burglar-alarm.



PATENTED'MAR; 27, 1,906. I

Nol Y' J. A. DILLBN. BURGLAR ALARM. Arrmourox Hum APB. 3, 1905.

Witnesses T0 @ZZ whom t may concern;

A PATENT OFFICE.

JOHN A. DiLL'EN, or oLEARriELD, PENNSYLVANIA'.

"BuneLAn-ALARM.

' Specification of Letters. Patent.y

' Patentedlilarch 27, 1906.

Application filed April 3,1905. Serial No. 253,518.

Be it known that L'JOHN A. DILLEN, a citivzen of the United States, residing at Clearburglar-alarms. l

- One of the objects in View is the` improve ment of the construction of devices employing .a barrel, a cushioned iiring-pin, and a trigger extending laterally from said firing-pim 4 vided with a notch 2.

field, in the countyof Clearfield and State of Pennsylvania', have invented new and useful Improvements in Burglar-Alarms, of which the following is a specification.

This invention relates to improvements in Another obj ect ofthe invention is the construction of a simple and eiiicient device which comprises a minimum number of parts, said device being comparatively inexpensive in construction.

. .with these and other Objecten View the invention consists of certain other novel constructions, combinations, and arrangements of parts, as will be hereinafter fully described, illustrated in the accomp anying drawings, and

vmore particularly pointed out inthe claims cocked and in the path of the door, so that when the door is opened thesame will be sprung and the device fired. Fig. 2 is avertical sectional viewof the barrelv and thesupporting means therefor,the iiring-pin being shown in side elevation. Fig.v 3 ris afragmentary view of an outside door, showing a tripping device in front elevation. Fig. 4 is a vertical central section of the tripping device and door shown in Fig. 5.

Referring to the drawings by numerals, 1 designates a cylindricalbarrel which is pro- The notch 2 provides parallel edges 3 3 upon the barrel. The lower cylindrical end 4 of the barrel is adapted to receive acartridge. (Shown in dottedlines, Fig. 2.) For supporting the cartridge within the lower end of the barrel a removable sleeve 5 is positioned therein.- The removable sleeve is provided with a threaded surface 6, which engages an inner threaded surface formed upon the lower portion of the barrel. The lower endof the sleeve 5 is provided with recesses 7 7 for receiving pointed members of remove the same therefrom. A removable sleeve 5a is positioned within the upper end of Vthe barrel 1. The s'leeveis provided with a threaded surface 6, similar to sleeve 5. -Recesses v7 are formed in sleeve 5a for the same purpose as the recesses which are formedy in the sleeve 5; The sleeve 5a is of greater thickness than the sleeve 5.

' Detent or locking notches 8 are lformed Vupon thebarrel 1. The notch 2 and notches ,8,8 constitute a bayonet-notch. Within the barrel 1 there 4is slidably mounted a cylindrical irin -pin 9. The firing-pin 9 comprises abo yportion which is provided with a reduced integral extension 10. The eXtension 10 extends through the sleeve 5a. Interposed between the sleeve 5'?L and the body of the yfiring-pin is a helical spring 11, constituting cushioning means for said pin, wherebydownward movement is imparted to the same when the same is sprung after it has been moved to a cocked position. Upon the -lower end of the firing-pin 9 there is formed a primer or pointed extension 12, which inthreaded into the lower end of the firing-pin, f

as will be seen at 14, Fig. 1. It will be obvious thatV the body of the firing-pin is of suflicient thickness to lit snuglywithin the barrel 1, While its reduced integral extension 10 is .likewise of sufficient dimension'to fit snugly within the sleeve 5, although the body por- '.tion' and 'the extension ofthe iiring-pindo not bind against the barrel' 1 orthe sleeve 5a. Owing to the removability ofthe trigger 13 and the sleeve 5'a, the firing-pin 9, as well as spring 11, may be quickly removed, if it is desired.

For supporting4 the barrel Isecure by any suitable means a member 15 to. theback portion of the same.` The member 15 lis providedwith a hook 16. Said hook 16 is positioned in a bracket 17, which may be secured to a dooror window frame. is secured to a door-frame, it will be neces.- sary to position the trigger 13 in one of the notches Stnearest to the door when it is de.-

sired to employ the device as an alarm. This IOO.

If the bracket Y IIO the spring will force the firing-pin. downs wardly, and if a cartridgey is positioned the llower end of the barrel the same will be exploded. y

The comparatively long body portion 15 of the supporting member, together withthe bracket 17 which is substantially circular in shape, furnishes means for easily securing the firing device to a support, or, if it is deslred, the same may be removed irom;thesupport without difficulty. The bracket- 17 'is bulged centrally, as at 17a, for receivingthe-hook-l.`

When the ring device=or alarm-is securedi to the frame of a door, it will be necessaryto' employ means whereby the trigger-may be moved from its cocked position after the `door has been closed from the outside; The firing: device or alarm is positioned in from the edge oi the door, so that the trigger 13, as illus-- trated in Fig. 3, will not project to the edge of the frame, permitting of the trigger'to be cocked and the person to pass out of the building and afterward to move the Ylatch-23? from its normal vertical position to a h'ori- `zontal position, as shown in broken lines, Fig. 3, to place the same behind thefiringpin 13. The latch 23 is iixedly securedto a; revoluble member 24. Therevolublesh'aft 24 is journaled in a door-frame and vat its inner end is swiveled to an angularbracket 25. The bracket 25 is removably securedby any suitable means, as screw 26, to the` door. The bracket 25 is provided withparallel Tpro-y jections 27, constituting stops for preventingg the latch from being 'moved below a'fhorizontal plane.' The outer end ofl theshaft 24 is. squared, so that said'shaft may be vrotatedb'y' means oi' an ordinary squared recessed key 28. (Shown in broken lines, Fig. 4.)

The door shown inFigs. 1 andf S-may'be` opened and closed without liring the alarm, and for this reasonl employ the trippingdevice, which is latch 23, which 1s to be positioned behind-the.

rovided withY the movablecocked trigger 13 for moving said trigger from; its seated' ppsitioir-when the door is opened, as shown in Figs. 1 and 3.

What .I claim is- 1. In a device of the character described, the combination of' a barrel, a removable sleeve threaded entirely into each end of said barrel, one of=said sleeves constituting a cartridge-support, a iiring-pin positioned within said barrel, an integral extension carried by saidiiring-pinland extending through one of the sleeves, yielding means carried by the extension of said firing-pin, a trigger carried by saidfiring-pin, means formed upon said barrel-and capable of holding said trigger in a cocked position, a tripping device for said trigger, said tripping device comprising a revoluble shaft provided withasquared end, a-latchxedly secured near theopposite end of-f'saidfsh'aft, a stop forv limiting movement of said' shaft and latch, and means for causing movement offsaid' shaft.

2. In a deviceof the character described, the combination of a barrel, a firing-pin mounted-in said barrel, a trigger carried by said firing-pin, means for securing said pin in a cocked position, a tripping device for said trigger; said tripping device comprising a curved or angular bracket, a revoluble shaft journaled at one end in said bracket, the oppositef end of said shaft provided with a Vsquared portion, a latch fixedly secured to saidfshat, contiguous to said bracket, integral parallel lugs projecting inwardly from saidibrack'et and constituting stops for limitingz'movement' of said latch andl shaft, and meansfor causingl movement of said shaft. In testimony'whereoil aiiix my signature inthe-presence of two witnesses.

JOHN A. DILLEN.

Witnesses:

THEoDoRE BROWN, L. P. GUELrcH. 

